import { parseTime } from "./crm";

/**
 * 防抖
 */
export const _debounce = (fn, time) => {
  let timer = null;
  return (...args) => {
    const context = this;
    if (timer) {
      clearTimeout(timer);
    }
    timer = setTimeout(() => {
      fn.call(context, ...args);
    }, time);
  };
};
/**
 * 节流
 */
export const _throttle = (fn, time) => {
  let activeTime = null;
  return (...args) => {
    const context = this;
    const current = Date.now();
    if (current - activeTime >= time) {
      fn.call(context, ...args);
      activeTime = Date.now();
    }
  };
};
/**
 * 获取文件名
 * @param {String} fileUrl -地址
 */
export const getFileNameByUrl = fileUrl => {
  return fileUrl.slice(fileUrl.lastIndexOf("/") + 1);
};
/**
 * 获取文件后缀
 * @param {String} fileName
 */
export const getFileSuffix = fileName => {
  return fileName.slice(fileName.lastIndexOf(".") + 1);
};

/**
 * @desc 手机号脱敏
 * @demo 155****8810  */
export const hidePhone = phone => {
  if (phone?.length === 11) {
    return phone.slice(0, 3) + "****" + phone.slice(7);
  } else {
    console.error("手机号码格式不正确");
    return phone;
  }
};

/**
 * 表格时间格式化
 */
export function formatDate(cellValue) {
  if (cellValue == null || cellValue == "") return "";
  let date = new Date(cellValue);
  let year = date.getFullYear();
  let month = date.getMonth() + 1 < 10 ? "0" + (date.getMonth() + 1) : date.getMonth() + 1;
  let day = date.getDate() < 10 ? "0" + date.getDate() : date.getDate();
  let hours = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
  let minutes = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
  let seconds = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
  return year + "-" + month + "-" + day + " " + hours + ":" + minutes + ":" + seconds;
}

/**
 * @param {number} time
 * @param {string} option
 * @returns {string}
 */
export function formatTime(time, option) {
  if (("" + time).length === 10) {
    time = parseInt(time) * 1000;
  } else {
    time = +time;
  }
  const d = new Date(time);
  const now = Date.now();

  const diff = (now - d) / 1000;

  if (diff < 30) {
    return "刚刚";
  } else if (diff < 3600) {
    // less 1 hour
    return Math.ceil(diff / 60) + "分钟前";
  } else if (diff < 3600 * 24) {
    return Math.ceil(diff / 3600) + "小时前";
  } else if (diff < 3600 * 24 * 2) {
    return "1天前";
  }
  if (option) {
    return parseTime(time, option);
  } else {
    return d.getMonth() + 1 + "月" + d.getDate() + "日" + d.getHours() + "时" + d.getMinutes() + "分";
  }
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function getQueryObject(url) {
  url = url == null ? window.location.href : url;
  const search = url.substring(url.lastIndexOf("?") + 1);
  const obj = {};
  const reg = /([^?&=]+)=([^?&=]*)/g;
  search.replace(reg, (rs, $1, $2) => {
    const name = decodeURIComponent($1);
    let val = decodeURIComponent($2);
    val = String(val);
    obj[name] = val;
    return rs;
  });
  return obj;
}

/**
 * 过滤数组中的假值
 * @param {Array} actual
 * @returns {Array}
 */
export function cleanArray(actual) {
  return actual.filter(v => v);
}

/**
 * @param {Object} json
 * @returns {Array}
 */
export function param(json) {
  if (!json) return "";
  return cleanArray(
    Object.keys(json).map(key => {
      if (json[key] === undefined) return "";
      return encodeURIComponent(key) + "=" + encodeURIComponent(json[key]);
    })
  ).join("&");
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function param2Obj(url) {
  const search = decodeURIComponent(url.split("?")[1]).replace(/\+/g, " ");
  if (!search) {
    return {};
  }
  const obj = {};
  const searchArr = search.split("&");
  searchArr.forEach(v => {
    const index = v.indexOf("=");
    if (index !== -1) {
      const name = v.substring(0, index);
      const val = v.substring(index + 1, v.length);
      obj[name] = val;
    }
  });
  return obj;
}

/**
 * @param {string} val
 * @returns {string}
 */
export function html2Text(val) {
  const div = document.createElement("div");
  div.innerHTML = val;
  return div.textContent || div.innerText;
}

/**
 * Merges two objects, giving the last one precedence
 * @param {Object} target
 * @param {(Object|Array)} source
 * @returns {Object}
 */
export function objectMerge(target, source) {
  if (typeof target !== "object") {
    target = {};
  }
  if (Array.isArray(source)) {
    return source.slice();
  }
  Object.keys(source).forEach(property => {
    const sourceProperty = source[property];
    if (typeof sourceProperty === "object") {
      target[property] = objectMerge(target[property], sourceProperty);
    } else {
      target[property] = sourceProperty;
    }
  });
  return target;
}

/**
 * @param {HTMLElement} element
 * @param {string} className
 */
export function toggleClass(element, className) {
  if (!element || !className) {
    return;
  }
  let classString = element.className;
  const nameIndex = classString.indexOf(className);
  if (nameIndex === -1) {
    classString += "" + className;
  } else {
    classString = classString.substr(0, nameIndex) + classString.substr(nameIndex + className.length);
  }
  element.className = classString;
}

/**
 * @param {Function} func
 * @param {number} wait
 * @param {boolean} immediate
 * @return {*}
 */
export function debounce(func, wait, immediate) {
  let timeout, args, context, timestamp, result;

  const later = function () {
    // 据上一次触发时间间隔
    const last = +new Date() - timestamp;

    // 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
    if (last < wait && last > 0) {
      timeout = setTimeout(later, wait - last);
    } else {
      timeout = null;
      // 如果设定为immediate===true，因为开始边界已经调用过了此处无需调用
      if (!immediate) {
        result = func.apply(context, args);
        if (!timeout) context = args = null;
      }
    }
  };

  return function (...args) {
    context = this;
    timestamp = +new Date();
    const callNow = immediate && !timeout;
    // 如果延时不存在，重新设定延时
    if (!timeout) timeout = setTimeout(later, wait);
    if (callNow) {
      result = func.apply(context, args);
      context = args = null;
    }

    return result;
  };
}

/**
 * This is just a simple version of deep copy
 * Has a lot of edge cases bug
 * If you want to use a perfect deep copy, use lodash's _.cloneDeep
 * @param {Object} source
 * @returns {Object}
 */
export function deepClone(source) {
  if (!source && typeof source !== "object") {
    throw new Error("error arguments", "deepClone");
  }
  const targetObj = source.constructor === Array ? [] : {};
  Object.keys(source).forEach(keys => {
    if (source[keys] && typeof source[keys] === "object") {
      targetObj[keys] = deepClone(source[keys]);
    } else {
      targetObj[keys] = source[keys];
    }
  });
  return targetObj;
}

/**
 * @param {Array} arr
 * @returns {Array}
 */
export function uniqueArr(arr) {
  return Array.from(new Set(arr));
}

/**
 * @returns {string}
 */
export function createUniqueString() {
  const timestamp = +new Date() + "";
  const randomNum = parseInt((1 + Math.random()) * 65536) + "";
  return (+(randomNum + timestamp)).toString(32);
}

/**
 * Check if an element has a class
 * @param {HTMLElement} elm
 * @param {string} cls
 * @returns {boolean}
 */
export function hasClass(ele, cls) {
  return !!ele.className.match(new RegExp("(\\s|^)" + cls + "(\\s|$)"));
}

/**
 * Add class to element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function addClass(ele, cls) {
  if (!hasClass(ele, cls)) ele.className += " " + cls;
}

/**
 * Remove class from element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function removeClass(ele, cls) {
  if (hasClass(ele, cls)) {
    const reg = new RegExp("(\\s|^)" + cls + "(\\s|$)");
    ele.className = ele.className.replace(reg, " ");
  }
}
/**
 * 时间戳
 */
export const getCurrentTime = () => {
  return new Date().valueOf();
};
/**
 * 4位随机数
 * @return {number}
 */
export const getRandom = () => {
  return Math.floor(Math.random() * 10000);
};

/**
 * 格式化金额
 * @param {*} amount 金额数字
 * @returns 每四位金额用逗号隔开
 *  */
export const formattedAmount = amount => {
  if (!amount) {
    return "0.00";
  }
  const number = Number(amount);
  if (isNaN(number)) {
    return "";
  }
  return number.toLocaleString("en-US", {
    minimumFractionDigits: 2,
    maximumFractionDigits: 2
  });
};

/**
 * 将数组拼接成字符串
 * @param {*} arr 数组
 * @param {*} sign 拼接的字符
 * @returns
 */
export const splicing = (arr, sign) => {
  return arr.filter(v => v).join(sign) || "--";
};

/**
 * 手机号是否合法
 */
export const isIphoneLegitimate = str => {
  const regPhone = /^(?:(?:\+|00)86)?1[3-9]\d{9}$/;
  return regPhone.test(str);
};
/**
 * 银行卡号脱敏
 */
export const bankCardDesensitization = val => {
  return val.replace(/(\d{4})\d{10}(\d{4})/, "$1 **** **** $2");
};
/**
 * 浮点数相加
 * @return {number}
 */
export function accAdd(arg1, arg2) {
  let r1, r2, m;
  try {
    r1 = arg1.toString().split(".")[1].length;
  } catch (e) {
    r1 = 0;
  }
  try {
    r2 = arg2.toString().split(".")[1].length;
  } catch (e) {
    r2 = 0;
  }
  m = Math.pow(10, Math.max(r1, r2));
  return (arg1 * m + arg2 * m) / m;
}
//获取文件类型
export const getFileType = fileName => {
  if (!fileName) return;
  const extension = fileName.slice(((fileName.lastIndexOf(".") - 1) >>> 0) + 2);
  return extension;
};
